Speech disorders in retardation.
D000293:Adolescent; D000328:Adult; D001037:Aphasia / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D008297:Male; D008875:Middle Aged; D013064:Speech Disorders / Q000453:epidemiology*; D013342:Stuttering / Q000453:epidemiology*; D014831:Voice